GCN Circular 23638
Subject
GRB 190106A : continued TSHAO optical observations
Event
Date
2019-01-07T23:21:36Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
I. Reva (FAPHI), A. Pozanenko (IKI), S. Belkin (IKI), A. Volnova (IKI),
E. Mazaeva (IKI), E. Klunko (ISTP), A. Kusakin (FAPHI), M. Krugov (FAPHI)
report on behalf of IKI FuN collaboration:
We continue the observations of the optical afterglow (e.g. Lipunov et al.
GCN 23616, Itoh et al. GCN 23617, Mao et al. GCN 23618, Reva et al., GCN
23620, Xin et al. GCN 23622, Quadri et al. GCN 23624, Hu et al. GCN 23627)
of the GRB 190106A (Sonbas et al., GCN 23615) with Zeiss-1000 telescope of
Tien Shan Astronomical Observatory.
We obtained several images in R-filter starting on Jan. 7 (UT) 12:57:20.
Preliminary photometry of the afterglow is R= 20.07 +/- 0.06 at (UT, mid
time) 13:40:10 which is compatible with the photometry reported in GCN
23636 (Zhu et al.) The photometry is based on nearby USNO-B1.0 stars.